Polymer light emitting d iodes (PLEDs), like light emitting polymers (LEPs) or organic light emitting diodes (OLEDs), are colorful polymer-based components for displays. PLEDs have a relatively simple structure in which the light-emitting and charge-transporting functions are combined in a single layer
Polymer LEDs differ from light-emitting polymers in that they have a light-reflecting cathode. Polymer technology differs from normal light-emitting diodes (LEDs) in its structure. PLEDs use undoped polymers sandwiched between the two electrodes
, anode and cathode.
The advantages of polymer technology over light-emitting diodes are the low power consumption, the extreme flatness and flexibility of the display, and the excellent luminous properties. PLEDs are used, among other things, in simple displays of meters
and monitoring devices.